Premade group ditches champ selection causing a client bug.

I queued up for a draft normal game and was assigned with an assumed premade group as they all lane swapped but had chosen different roles. (ex. Jungler was a mid ) They didn't communicate through chat, so this was already causing issues. Then after the timer reached 0, the client bugged. In the chat box it said...

NAMELESS (To protect identity) has disconnected NAMELESS (To protect identity) has disconnected NAMELESS (To protect identity) has disconnected

Didn't think anything of it since it sent me back to home screen (reason I didn't screenshot), but as soon as I hit Play, It said I was already in a game and to restart. This was when I became extremely angry, my laptop takes forever to load up the game. When I got into the game our Miss Fortune was afk/disconnected and our team was losing 5 to 25. The chat was silent, so that was another signal that they were communicating on another program. Overall this experience was a pain, and hopefully this wasn't mentioned before as I tried searching it up, but didn't find anything matching my issue. In all honesty this is probably a common champ selection bug.